package com.example.pertecttime.myview;

import android.content.Context;
import android.graphics.Canvas;
import android.graphics.Color;
import android.graphics.Paint;
import android.graphics.Rect;
import android.util.AttributeSet;
import android.view.View;

/**
 * Created by 半生瓜 on 2017/7/23.
 */

public class myview extends View  implements View.OnClickListener{
    private int mCount;
    private Rect mBounds;
    private Paint mPaint;
    public myview(Context context, AttributeSet attrs) {
        super(context,attrs);
        mPaint=new Paint(Paint.ANTI_ALIAS_FLAG);
        mBounds=new Rect();
        setOnClickListener(this);
    }

    @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        mPaint.setColor(Color.BLUE);
        canvas.drawRect(0,0,getWidth(),getHeight(),mPaint);
        mPaint.setColor(Color.YELLOW);
        String text =String.valueOf(mCount);
        mPaint.setTextSize(30);
        mPaint.getTextBounds(text,0,text.length(),mBounds);
        float textWidth =mBounds.width();
        float textHeight =mBounds.height();
        canvas.drawText(text,getWidth()/2 - textWidth/2,getHeight()/2+textHeight/2,mPaint);
    }

    @Override
    public void onClick(View v) {
     mCount++;
        invalidate();
    }
}
